Sciencemadness Discussion Board

How many electrons in an orbital?

Julie18 - 16-6-2009 at 18:01

My textbook sort of confuses me about this; How many electrons are there in an orbital? One, or two?

Thank you ahead of time :)

[Edited on 17-6-2009 by Julie18]

JohnWW - 16-6-2009 at 19:18

A filled orbital has two, each with opposing spins, which cancels out their magnetic moment. Some compounds with p orbitals such as NO, and many transition metals and their compounds with partly filled d or f orbitals, have unpaired electrons in one or more orbitals (up to 5 of d and up to 7 of f), resulting in paramagnetism or (when electron spins throughout a sample are aligned parallel) ferromagnetism.